Trimming-machine.



P. H. PERRY.

TRIMMING MACHINE. APPLIGATION FILED APR. 29, MIL

Patented Dec. 24, 1912.

' irnnnnnrcir H. Penny,,orgiznvnniig,fiimssncrinsn'r'rsfessienon.ro, snoia- H N m AT E -J R EY, A. plflomrx'on-or'nnw" JERSEY. l

PERRY,

. a citizenof-the United- 'States,,residing at -Beverl y;-.in :the county of Essex and State" of Massachusetts', 'have invented certain 1m provements in Trimming-Machines,- of

which, theK-followingwdescription, in conne Y'tion with theaccomp'anying drawings, is a several figures.

This Mention relates to trimming ma,- chines endparticfllarly. to machines of the t'yp e"disclosed-in my prior applications sis-- signed to the fi'a'ssignee of the present inven-.

tipn," Ser'. nns. 395,194, filed-Sept. 30,":1907,

- and,51:3 ,0' 71, filed Feb. 10,1910.- The ma-'- .zchines "shownyinj these applications are dei signed particularly for trimming that- 'por-' tion' ofthe edge of a, shoe .sole between the line of the heel'breast and the point in the shank at which the usual machine; trimming operation is stopped. These 'machines each =*i1'1clude a 'knife arranged to'trim along the edge of the shoe sole-"and a. second knifearranged to-cut' transversely into the edge of {the sole to detach the shavingformed by the" *edgetrimming knife. p a

" "The. present-inventionis directed particularly' to theprovision'of a constructiomfor 'fa'cilitatingthe' sharpening or" changing ofthe ki1ives, to novel means for controlling the relative movements of the'knives; and

to the general improvement of the machine.

To these endsan iinportant feature-of the ,"invntion consists in a construction in which one or more of the knife holders may be removed readily from the machine with its knife secured inoperative position in the holder The knife may then be sharpened without r'emoving'it from the holder and may be replaced in the machine. Ihis'constructionis of advantagenot only in sav ng the time that the workmanwould spen in adjusting the knife in its holder to'bring. it into proper relationship-to the'other parts of the machine such, for instance,- as the guards or coilperating knife or knives-but also is of advantage in aifording the 'workman an article of sufiicient size to handle ccnveniently in whetting or grinding the knife. I

In the illustrated embodiment oftheim ting l knife or chopping iknife i is pivoted" to the'line of intersection of their paths; The.-

.Thismechanism preferably is arranged to' tive to thepath of the edge trimming knife,

"tuition the holder-jot the transversely cutrnmmmmmciimn I p Specification oflett'ers Patent?" i Pateilted DGQ-24Q-1912Jw U "Applieationi iledflpril29,1911. Seria1No; 624,059l"-l and derives its motion from the holder for. the edge; trimmmgknifez These holder s preferably are so moved andg-flthe knives are 1 so adjusted that the cutting. edges move to] v chopping knife, therefore, severscleanl the: shavmg formed-by the edge trimming" ife 4 without cutting into or ma l-ring the trimmed surface-0f the sole edge; The means for're-f taining the holdersin operative. relationship 6:;

" to the driving mechan sm:preferahlyjisso arranged that itmay bevmani'pulated; readily fl to release the holders and permit them to be removed from 'the'ma'chine while still connectedp :No changeof adjustment of the'tb knives in'their holders or' of the holders rele- I tive to-each other, therefore, is necessary, and if the"sharpening-required is only slight,

'as usually is'theease, theknives will 'be 1n .pro'per adjustment when the holders are again placed in operative position in themm 'chine; After. the knives have once; been adj-usted in their holders further adjustment is unnecessary until""they"have beconie so. wo-rn that they fail to cut substantially'to. the line" of intersection oftheir "paths.

A further feature ofzthe invention bOIiSists ina' novel mechanism-for controlling'the movements of the transversely cutting knife.

permit the. removal of the holderfrom the machine whenever the holder is re1eased from its, cooperating; parts. Inthe ,illns-I tratedconstruction, the holder ispivotedin} termediate its ends to the holderfor. theedge-trimming knife "and at theendopposite that'in which the knifeis' mounted v{it carries an adjustable eccentric stud. A roll.

' lS mounted'on the studand runs "i n'e'lsta-f ticnary! guideway therebycausing the. knife 951 to; travel'in a path controlled-by the form of the .guideway. 'The adjusitahility of the studfafl'ords means-for varying the-path of] travel of the transversely cuttingkniferela; asmay 'be-found necessary, 'for instance, to

-coinpe'nsate .-for changes-in the stroke of the trimming due --to. .W.ear 'of the latter knife. e The invention is directed alsofto a novel guard for the knives and to other features that will later he. described and claimed.

'In the accompanying drawing s ,f-Figure.

. v .n. I

and drlv mg-mechanlsm with 1 is aiview' in side elevationgofa machine embod ing this} invention Fig; '2; is a front elevation of the nachineshovvn in Fig-91;. Fig. 3 is a perspective view ofthe knives '.and theirholders removed from the 'ma-' chine, Fig; 4- is a 'per spective -View showing the parts of the-machine to which the holdcarrying a stationary hor'ihontal spindleo on which a rocker frame' 8 -is mounted. At' lts rear end-this frame is provided. with twoparallel depending arms 10 which are ma- =chined onjtheir'inner faces to form a slider ,t'vaylfor a block- 12. This block is'mounted ona stud-'14- that proj ects' eccehtricallyyfrom" arota'ry shaft '16 supported in suitable hearings. in the. frame. I A spacingstud is held between the ends -'of thearms 10 by a bolt18.

and serves to stiflenthe arms". It will be evident that motion ofithe shaft 16' will be transmitted th-roughthe block 12 to the arms 10' causing the rocker'fraine 8' tofoscilla on" the sp ndle 6. Ducts, .not shown, connec the various .frictioh surfiac'eswith oiljcups 19. and convey lubricating material tofsaid sur- -faCS. 1 l 'I 'i I The arms 10'1are provided with \several' stifi'eningrihs 20, as best shown in'lFi .4, an'dii-the rearmos't of-these'ribs extends'a the the ,upperurface of Ethe rocker-frame 8 a nd hears against-the rear face of a. block 22that is fastened on to the .lowerfiside foiifthe mom-= 4; .zlIhi ribnd heitbidk 22 ing ofithe spindle 6; The holder 241 m the edgef'trimin'in'glmite preferably ,bom'grisesa plate rhaving a def pending farm slotted and grooye d ,to receiveg' afl-dove-tailed rib on the edge trimming knife 1 26, and two oppositely extendi ng lit-W ch.- th'elholders 2,8. and 'BQ for arms-to l s. tr s-1 .versel-y' cutting knives are pivoted. The, edge trimming knife QSQ-ha's'rightend left 9 cutting edges formed at itsjopposite ends 'arid the' holders and fiOcarry-right and left chgp int: knives32 anidfl' hrespectivelyz" Each ho deriyis Iit' and.,.-has' a dove-tailed; groove formed-between the split sections to receive a clam ing rihg with which each knife .i'sQ'rEVi'dLedf ,"sorej w threaded through the 'fio'split sections of' the holderserves to clamp them on to the rib andfs ecure the" kniie "The trimming knife should beshap ed to trinith'e sole edge to. a transverse contour .fagreeing that given. toithe' previously operateto hold heal'oikeritr amefiwm trimmed 'port'ionofthe sole edge bythe usual; rotary -cutter.- Since 'the sole edge usually is beveled or rojundedo-fi' in the shank, the edge trimmingknife shown isshaped-to trim the edge-t0 a 'rounde'd 'or beig'rele'd con-' tour. The *choppin'g'. knives -=s11 wnhave their edges curved in their paths of travel to conform to the curved edges of-theptriinmirig knifeand these "knives preferably. are

" adjustedto out exactly to'the trimmedsurface formed by, the edge trirnmingknife and: $0 the end of the out made by the trimming CH1 (ELI I I The rocker franieS and the parts abqyedescribed that-drive it constitute the drJv-y ing mechanism for tl ekniires; and o'rd't' to retain the knife, holders inoperative re lationshipto said mechanism the rocker frame. is provided. at'its forward'fend with;

radial flan'ges forming a. head having a p 1ane' end surface; This head c'a'rries 'three' positioning pins 38,? designed to enter holes; 40' drilled through the holder '2{l,',and also a short fstudthreaded'at its endvto receive a clamping nut 42. "Arroblon'g[t1'1'rn' button 'tion of'the' stud andj 'the holder-24 has an. opening 46 sha'ped likethe-turni-button 44 t 4A is positioned loosely on thejthreaded; porbut large'en'ough to enable the lidlder to pass a on over the buttonv with-'ihe jiins I38 enter- 5 ing the holes 40; The button may "then be turned withits longest zdimehs'ion acrossthe slot' lfi-and thenjclarnped 'against the face of the holderl by the. bolt 42; In this position fcured rd'okerzframe '8';

For the purpose of ciintrolling the move- ":ments of the chopp'in'gknivesand adji-isting their paths of travel 'the holders 28 and 30 are drilled attheir uppenends to receive studs 48 'and'49 respectively which-"nastyhe J clamped thereon in any angular posit'i on by eans "of nuts 50' and-51. At theback sides o the holders'the s't-h'dseaoh have eccentric.

pbrtions on which are mounted rolls 52 and \53. :Th'ese' lOllSillIlwili' inclined slots or 'guideways 54and 55' for-rhed'iif a hardened block 57 "that: is" fastened on'toithe "bracket v 'arln 4-by ascrewl59l" v V I "It Ltvill' be evident that as the" rocker ,tp aine oscillates labout its axis; tfifhol dei wuill helrockedwith it, causing the kn'ife 26 -to ,make short: rapid strokes. At the same time, theknives-32andi34, because of the connections of their'holders 28 and 30 "with the 'holder 24, will be moved inpaths 't'ra-ns-' -verse a), the path'of the-knife 26'. a The several 'knives 26,132; 34 should be so adjusted iintlieir holders and thestuds 48 and 49 w shouldbe so adjusted that each pair offlright and left cutting edges will out exactly to, v

' the line of interseetionvof' their paths. As

the knife 26 becomes shortened by repeated grinding its operative strbke 'also will be shortened and it will then become necessary to change adjustment of the studs 48 and tion of an L shaped: support 60.

32 and to cut. into the sole edge atthe ends of the cuts'made by the edge trimming knife 26. i

For the purpose of protecting the'upper theshoe from contact with the knives, a guard 56 is positioned in front of the knives and shaped to enter thejcrease between the welt an upper of the shoe. This guard consists of 1' thinnedged plate fa stened'ad-- justablybya screw' 58. to the vertical por- 'guard toproje'ct more or less beyond the :axis of the spindle 6 formed in the lower face ibf'the bracket arm 4". This armalso is slotted vertically from its end inwardly, .25

' thumb screw .64 that is threaded into the .ashoullderto bear uponthe upper face, ef. the arm at; oppo-site sides of the; sloti62 and thereby toplamp the supportingmember firmly onitb said arm; In using the machine-the workman presents therilght hand edge of a sho lsole to fthe-action of the knives 32 and 26 with the .35

Work engaging face of the knife 26 to ac-' commodate sole edges that project more or less beyondthe-upper. The horizontal por-l -t1on of. san} support has a rib designed to enter a groove extending parallel with the as slmwnat 625-to receive the stem of a support 60; The'screw' 64: is provided with guard 56 ositioned in the crease between the welt an upper. He starts the trimming operation at the-point where the machine trimming operatlon stopped and thenmoves the shoe past theknives from right to left causing them to trim toward the heel of. thefshoe. When the heel strikes the ch op-' ping knife 32; it will stop this movement of t-he shoe since the operative stroke of this knife ismade such that its point does not rise above the edge of-the heel. Fig. 5 shows the knives and shoe substantially in k the positions that'they occupy at this stage of the trimming operation Inthis position the chopping knife will cut into the sole edge in" line with the ,heel breast and since bothknives cut ;..-to;-.;t he same line the trimming knife alsoJwill cut to the line of theheel breast. The chopping knife thus 'acts. as a guard for the heel to prevent movement of the heel breast into contact with the edge trimming knife. The trimming of the right hand edge being completed, dieleft hand edge of the shoe 1s. next presented to the operation of the knives 3st and 26 with the guard 56 positioned in the rand :rease as before; This trimming operation is like that/just described in connection with thf. right hand edge.

When it is desired oft'thekn'ives the thumb screw 64 is-loos- By this i then 'be ready for operation.- adjustment the workman may cause the to sharpen one or moreened slightly and this screw with the support GO'for the guard-56 is slid ofithe arm 4. The nut L2 is then loosened and the turn button 44 is moved into a hori-' 'zontal position; allowing the 'holderQt to slide thereover carrying with it the holders 2S and 30. Fig. 3

knives may-then be sharpened, the 'holder' may be replaced and clamped in position by the turn button eti, the guard again slid-into shows the holders sub-J,- .stantially sis-they appear when removed from the machine.- Anyone or all ofthe operative positicm' and the machine will "The substitution of one set of knives for. another. to accommodate different shapes or thicknesses of sol-e edges may be effected very conveniently by having each set of knives secured in adjusted posit-ion its own 'setof'holders. Itis then necessary merelyto remove one set ofholders' from .'the machine and substitute another set hav JIIglGHYQS of therequlred shape and size.

Having fully described my invention, what-I claim as new and desire/to secure by Letters Patent of the United States is:

l. A machine of the class described. comprising, in combination, a knife, a holder therefor, driving mechanism for giving said holder rapid toand fro movements and a fastening device carried by saidmechanism for securing said holder m operative relationship to said mechanism, said-holder and fastening device being shaped to permit the holder. to-pass freely over the device. in a certain relationship of said parts, but to fasten the holder securely in operativeposition-in another relationship of said parts.

2. A machineof the class described con1- prising, in combination, a knife, a' holder therefor, driving mechanism for said holder,

a plurality of positioning pins and fastening button carried by said. mechanism,

: said holder being apertur'ed to receive said.

pins and button, and means for clamping saidbutton against said holder. v

A mach ne o'f-the class described comprising, in combination, a knife, a holder therefor, mechanism for driving said holder.

0 Q ll v l r i 1 guiding means cooperating with said holder to cause said mechanism to move the knife in a predetermined path. and means for normally retaining said holder in operative .relationship to said mechanism, saidguiding. means being arranged to permit the'holder to be removed from the machine when it is' released from said driving mechanism.

4. A. machine of the. class described comprising, in combination, a knife a holdertherefor. mechanism for driving 'said holder. adjnstable guiding means .cot perating withsaid' holder to cause the driving mechanism to move said knife '--in a predetermined path, means for-retaining said'holder in operative relationship tosa 1d mechanism and 'said means, said retaining means and said guiding means being constructed to permit the removal of the holder from the driving mechanism while maintaining the adjustment of the guiding means unchanged.

A machine of the class described comprising, in combination, a knife, a holder for said knife, driving mechanism for said holder, means for removably fastening said holder in operative relation to said driving mechanism. a second knife and a holder for said second knife having connection with the first holder to retain it in operative position in the machine.

6. A machine of the class described comprising, in combination, a plurality of knives, connected holders for said knives, mechanism for driving said holders and means for retaining said holders in operative relationship to said driving mechanism constructed to permit'tlie holders to be removed readily from the driving mechanism While retaining their connection With each other undisturbed.

7. A machine of the class described comprising, in combination, a plurality of knives, independent holders for said knives connected for movement relative to each other, driving mechanism for said knives, guiding means cotiperating with at least one of said holders to cause said driving mechanism to move said knives in a predetermined relationship to each other, and means for retaining said holders in operative relationship to said driving mechanism, said guiding means-being constructed to permit the removal of the holders from the machine in their connected relationship When they are released from the driving mechanism by said retaining means.

8. A machine of the class described com-' prising, in combination, a. plurality of knives, independent connected holders for said knives, driving mechanism for said holders, adjustable guiding means carried by one of said holders and .cotiperating with a part of the machine to cause said knives to move in a. predetermined relationship to each other, and means for retaining said holders in operative relationship to said driving mechanism, said retaining means and said guiding means being arranged to permit the removal of the holders from the driving mechanism in their connected cond1- tion while maintaining the adjustment-of said guiding means undisturbed.

9. A machine of the class described comprising, in' combination, a knife for trimming along the edge of a shoe sole, a knlfe arranged to cut transversely intothe edge of the sole at the end of the cut made by the edge trimming knife, connected holders for said knives, a common driving mechanism for said holders and a single fastening means for retaining said holders in operatrimming knife holder in operative relationship to its driving'mechanism whereby the release of said retaining means permits the removal of said holders together from the machine.

11. A machine of the class described comprising, ln combination, a knife holder, 'a knife secured in said holder, means for rocking said holder, a second knife holder pivoted to the first holder, a knife carried-by said second holder, a stationary member having a guideway formed therein, a device carried by said second holder operatin in said guideway'to guide said second knifie, in its movements and fastening means for removably securing the first. holder in operative relationship to said driving mechanism.

12. A machine of the class described comprising, in combination, a knife holder, a knife secured in said holder, means for rocking said holder, a second knife holder pivoted to the first holder, a knife carried by said second holder, a stationary member having a guidevvay formed therein, an adjustable device carried by said second holder and operating in said guideway to control the movements of said second knife, fastening means for removably securing the first tachable guard for said knives.

13. A machine of the class described comprising, in combination, a knife holder, a knife secured in said holder, means for rocking said holder. a .second knife holder connected to the first holder for movement thereby, a knife carried. by said second holder, a stationary member having a guidway formed therein and a device carried by said second holder and positioned in said guideway to guide said second knife in its movements.

14. A machine'of the class described com- ;prising, in combinatipn, a knife holder, a knife secured in said holder, means for rocking said holder, :1 second knife holder pivoted to the first holder, a knife carried by said second holder, a stationary member having a guideway formed therein and a device carried by said second holder and positioned in said guideway to control the movements of said second knife, said device holder to said driving mechanism and a 'deand said member being constructed for rela-a tive adjustment to, ury the path of travel of the second knife. 4

15. A machine of the class described e01 prising, in combination, a knife holdem-a,

knife secured in said holder, means for rockiiig said holder, asecondjknife holder pivn ovably secured to said frame having a de' i prising, in combination, an edge. trimming pending arm shaped to form a knife holder, a double edged knife secured in said holder, a pair of transversely cutting knives, independent holders for said knives pivoted to opposite sides of said plate, a stationary member having two guideways and a device carried by each of said pivoted holders to run in said guideivays'and cause the knives last-mentioned to move in paths transverse ers, means for securing said studs in adjusted positions, a-roil carried by each .stud, a stationary member having two; inclined guideways formed toreceive' said rolls, and a detachable guard positionedin front of said knives.

18. A machine of the class described comprising, in combination, an edge trimmingknife, driving mechanism for giving said knife rapid to and fro movements, a holder for said knife removablysecured in operative relation to said mechanism. a. guard for said knife mounted in position to prevent the removal of said knife hold-e1" from the machine but inovable out ofsaid position to permit such removal of the holder,

and means for holding said guard in operative position.

- 19. A machine of the class described comknife, a holder for said knife, driving mechanism for giving said holder rapid to and fro movements, means foi'.i'eino\ abl v securing said holder to said mechanism, a. rand guard positioned in front of said bear upon said frame piece to clamp said support thereto.

In testnnon; whereof I have signed my name to this specification 111 the presence'of two subscribing Wlt11QSS8S..

FREDERICK H. PERRY.

\Vitnesses JOHN H. McCnnAnY, gJAiins R. Hononn. 

